- At screening (after washout, if required) the patient meets the full Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision (DSM-IV-TR) criteria for ADHD (combined type, predominantly inattentive subtype, or predominantly hyperactivity-impulsive subtype), for which symptoms were present for the age of 7 and symptoms have been persistent for at least the last 6 months, according to a psychiatric/clinical evaluation using the adult ADHD Clinical Diagnosis Scale, Version 1.2 (ACDS).